• Title/Summary/Keyword: bridges management

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Development of a Vision-based Crack Detection Algorithm for Bridge Inspection (교량점검을 위한 비전 기반의 균열검출 알고리즘 개발)

  • Kim, Jin-Oh;Park, Dong-Jin
    • Journal of Institute of Control, Robotics and Systems
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    • v.14 no.7
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    • pp.642-646
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    • 2008
  • We have developed a vision based crack detection system and algorithm to inspect base side of bridges. After human operator decides from vision images captured if lines on base side are cracks or dirt, our algorithm finds automatically the length, the width and the shape of cracks. The system has been tested with a robot extender on a truck in real environment and has been proved to be very useful to reduce inspection cost as well as the data management.

Development of XML-based Document Model and Its Applications for Integrated Management of Bridge Design Documents (교량설계문서의 통합관리를 위한 XML 기반의 문서모델 개발과 응용)

  • 이상호;김붕근;정동균;강형택
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2004.10a
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    • pp.179-184
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    • 2004
  • This paper presents a prototype of document schema to guarantee the consistency of the bridge design information during the life-cycle of bridge. The main component of document schema for bridge design information is derived from the Document Type Definition (DTD) Pool which is the Construction CALS/EC standard in Korea and the document schema is implemented by using the XML Schema. The ifcXML are adopted for representing product data of bridge. A pilot system adopting the document schema and its application to existing bridge show that the suggested document schema can be efficiently used to develop software modules supporting the integrated design documents for bridges.

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Deviant Citizenship Behavior: A Comprehensive Framework towards Behavioral Excellence in Organizations

  • Chowdhury, Dhiman Deb
    • Asian Journal of Business Environment
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    • v.5 no.1
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    • pp.13-26
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    • 2015
  • Purpose - While studying the topic of seeking behavioral excellence (proactive and creative competence) in organization, scholars have presented a variety of literature sprinkled with countless theories on behavioral competence. Research design, data, and methodology - Foremost among the several theories on this topic are two distinct sets of behavioral theories: OCB (Organizational Citizenship Behavior) and Constructive Deviance. Both of these theories attempt to posit their usefulness in positive organizational outcomes (such as organizational effectiveness, quality, performance, and innovations). Results - However, their proposed constructs are opposing and studies are conducted in isolation, thereby creating a significant literature gap and omitting the possibility of being inclusive of the best that both OCB and constructive deviance have to offer. Conclusions - The article bridges the gap by critically examining OCB and constructive deviance and including a consideration of other empirical studies in an attempt to be comprehensive while, at the same time, seeking to find an effective behavioral construct that is both appropriate and conducive for positive organizational outcomes in the context of the current business environment.

Construction of a 300-Meter Vertical City: Abeno Harukas

  • Mizutani, Kenichi;Hirakawa, Kiyoaki;Nakashima, Masato
    • International Journal of High-Rise Buildings
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    • v.4 no.3
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    • pp.199-207
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    • 2015
  • Abeno Harukas is the tallest building in Japan and is located in Abeno, which is one of the three main railway transport nodes in Osaka. This building has a height of 300 meters, and its lowest levels are 30 meters below ground. It contains a department store, museum, offices, a hotel, and an observatory. In this urban renewal project, a section of the department store that encloses the station was dismantled and replaced by a supertall building complex, while infrastructure was simultaneously constructed, including: upgrades to the station and the existing department store, improved connections to the subway and pedestrian bridges, and a new pedestrian walkway over the road. In this paper, the ingenious erection processes, newly developed technologies, and precise construction management techniques are introduced for Japan's tallest building.

Prospects of Development of the Russian Asia Railway System: Geoeconomic Aspect

  • Evgeniy, Kibalov
    • International Journal of Railway
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    • v.3 no.4
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    • pp.123-125
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    • 2010
  • That Russia is potentially great transport power becomes obvious if look to map of any route. The geographical position of the Russian Federation unequivocally specifies intended by nature the role of geobridge between the countries of Asia-Pacific Region and Europe. However, in construction engineering practice and feasibility study the construction of difficult and strategically important bridges is generally joins in wider concept of bridge crossing. The last includes not only actually the bridge(through the river, gulf, etc.), but also approaches to it, which construction in view of features of a relief and a configuration of new transport communications which have already developed and subject to construction not less difficult technically and not only economically expended, than building of the basic artificial construction.

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Development Considerations for Reverse Engineering Guidelines for AEC (AEC 역설계 지침 개발을 위한 고려사항 도출)

  • Kang, Tae Wook
    • Journal of KIBIM
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    • v.5 no.4
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    • pp.23-29
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    • 2015
  • The purpose of this study is to provide considerations for developing reverse engineering guidelines for AEC(Architecture, Engineering and Construction). The reverse engineering is a methodology which has the purpose of extracting and recognizing geometries and properties from physical objects such as buildings, facilities, terrain and infrastructure including roads, bridges, and tunnels. To handle them for the purpose of construction management, maintenance, and operation, we should know the exact position, orientation, and dimension of the objects including their properties. As the viewpoint of the information extraction from reverse engineering, it is necessary to derive consideration factors for developing reverse engineering guidelines.

Organizational Reform for the Successful Implementation of Infrastructure Asset Management using Balanced Score Cards (균형성과지표를 활용한 사회기반시설 자산관리 조직 개선 방안)

  • Chae, Myung Jin;Park, Ha Jin;Lee, Gu;Lee, Geon Hee
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.29 no.6D
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    • pp.745-752
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    • 2009
  • Management of social infrastructure has been advanced from facility management (FM) to asset management (AM), which adopts the aggressive and proactive methods in predicting the deterioration of infrastructure, prevents failures, and eventually saves maintenance cost. Infrastructure asset management is not a simple engineering technique, but it is a new paradigm evolved from facility management practices. To implement the infrastructure asset management successfully, organizational reform is very important. This paper suggests critical success factors and key performance indicators to implement the infrastructure asset management for facility managers of government owned social infrastructures such as roads and bridges. Reorganizing the facility management group requires new vision, objectives, strategies for the paradigm-changing asset management. This paper uses Balanced Score Card (BSC) which is a proven method in measuring and setting new objectives for an organization. Once the performance indicators are reviewed repeatedly by facility managers through experts workshops, developed BSC can be used in practice. This paper discusses the development of robust BSC scoring method through in depth literature reviews and investigation of asset management practices of domestic and international cases.

A Feasibility Study to Adopt BIM-based Infrastructure Management System (BIM기반 사회기반 시설물 유지관리 도입을 위한 경제적 타당성 분석)

  • Kim, Jeonghwan;Ji, Seung-Gu;Jeong, Taehyung;Seo, Jongwon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.34 no.1
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    • pp.285-292
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    • 2014
  • BIM (Building Information Modeling) is a new paradigm that includes construction life-cycle, and BIM has become mandatory regulation according to the Public Procurement Service since 2016, which accelerates its application. BIM is now expand from architectural field to infrastructure industry. Through pilot projects, BIM has been challenged with verification process. This trend has affected to maintenance and operation (M&O) phase of construction life-cycle. Advanced country has already published their research and result with feasibility study and guidelines. In this paper, we conduct the feasibility study to adopt BIM-based infrastructure management system. Bridges and tunnels were selected as application target, and benefit/cost ratio were used. The result shows that BIM-based infrastructure management system is feasible when the level of detail is more than "Medium" in bridge, and "High" in tunnel.

The First Global Management Plan for the Urban Landscape Restructure in Tokyo

  • Iglesias, Fernando;Shinji, Isoya
    • Journal of the Korean Institute of Landscape Architecture International Edition
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    • no.1
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    • pp.176-182
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    • 2001
  • The case for study in this paper is the Main Plan and Management for the Fukutoshin; the restructure of Nishi Shinjuku, This plan was first outlines in 1960, and includes a vast area of 96 ha for redevelopment. It aims to create a totally new center in the city. This was the first case in Japan, and in the world of a plan of these magnitudes. involving urban landscape restructuring from three points: Landscape (open spaces for public use: the Shinjuku Central Park and the surrounding area of the buildings), transport and commercial building developments. The Landscape plan for the green areas was decided in a way to compensate the population of the area and the visitors. As a rule, high-rise building constructions are placed each one in single lots and are surrounded by open spaces and greenery. Pedestrain areas are widened and also connected by bridges in a way to allow free circulation, and interconnection between the constructions and the green areas. Another important factor is the role that Private Corporation, and public interest plays. Joining these two forces has allowed the concretization of this project. This interpolation between public and private roles was an innovation in Japan, and it also the key for the concretion of the project. The historical review of the process and management of this project help us to put into perspective the introduction of new concepts and ideas, which were not related at that time to traditional Japanese Landscaping. Furthermore we are better able to understand the substantial increase in the percentage of land dedicated to green areas in contrast to the typical standards of Japanese cities.

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A Study on Development of BIM-based Asset Management Model for Maintenance of the Bridge (교량의 유지관리를 위한 BIM기반 자산관리 모델 개발에 관한 연구)

  • Kang, Jong-Min;Lee, Dong-Youl;Park, Jong-Bum;Lee, Min-Jae
    • Korean Journal of Construction Engineering and Management
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    • v.13 no.5
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    • pp.3-11
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    • 2012
  • The most of domestic bridge has an used life under 30 years, Future maintenance budgets can be expected to increase. However, because of bridge maintenance budgets are limited, demand for asset management being performed to achieve required performance within available budget is increasing. To perform effective asset management of bridges should be made the best use of information to occur in all phase of construction project. Therefore, the development of system and DB is required to support asset management by effective information management. The objective of this study is the development of the BIM-based bridge asset management model. Through previous research survey, BIM capabilities and asset management components were established and mutual linkages were examined. Bridge asset management model was composed of alternate assessment model. In addition, BIM-based asset management model was performed case studies to verify feasibility and applicability. The proposed model can be applied to a current bridge maintenance procedures and supported to perform effective bridge maintenance tasks within a limited budget.